单词 | rhamnose |
释义 | rhamnosen. Chemistry. A sugar of the pentose class which occurs widely in plants, esp. combined as glycosides in berries of buckthorns (genus Rhamnus).Rhamnose is a methyl pentose sugar with reducing properties. Chemical name: 6-deoxymannose; C6H12O5. ΘΚΠ the world > matter > chemistry > organic chemistry > carbohydrates > sugars > monosaccharides > [noun] > by number of carbon atoms > having 5 carbon atoms > rhamnose rhamnose1888 1888 Jrnl. Chem. Soc. 54 667 As the analogy of the sugar C6H12O5 to the dextrose series is brought into prominence, the authors propose to call it rhamnose, because it also appears to be identical with the sugar obtained by Liebermann from Rhamnus. 1931 E. C. Miller Plant Physiol. viii. 408 Rhamnose, CH3C5H9O5, is a pentose in which one atom of hydrogen has been replaced by a methyl group. 1970 R. W. McGilvery Biochemistry xxiv. 585 The mammalian nucleotide carrier of rhamnose is not known for certain. 2006 Proc. National Acad. Sci. U.S.A. 103 13558/1 CC9311 [sc. a cyanobacterium strain]..is missing genes for one pathway for the biosynthesis of the sugar rhamnose. Derivatives ˈrhamnoside n. any glycoside in which the sugar is rhamnose. ΘΚΠ the world > matter > chemistry > organic chemistry > carbohydrates > sugars > [noun] > glycosides > named > others jalapin1832 rhaponticin1834 struthiin1835 menyanthin1842 quercitric acid1844 rhodeoretin1845 helicin1848 rutic acid1848 morindin1849 panaquilon1858 galactoside1862 parillic acid1864 thujin1868 digitoxin1875 margarin1878 naringin1879 teucrin1881 condurangin1885 scopolin1885 linamarin1892 arabinoside1893 picein1894 rhamnoside1894 mannoside1897 saponaretin1905 pentoside1910 prunitrin1910 prunasin1912 leucoanthocyanin1920 pyranoside1930 stevioside1931 furanoside1932 hecogenin1943 1894 Chem. News 31 Aug. 106/1 The following derivatives have been prepared:—Ethyl and methyl glucoside, ethyl and methyl rhamnoside [etc.]. 1934 C. C. Steele Introd. Plant Biochem. xi. 119 It [sc. emodin] also occurs as the rhamnoside frangulin in the bark of Rhamnus Frangula. 1994 Biochem. Systematics & Ecol. 22 277 Predominant glycosides [in Actinidia] were glucosides, galactosides, rhamnosides, [etc.]. This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022). < n.1888 |
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